January weather forecast
Peje, Costa Rica

January, like December, in Peje, Costa Rica, is another warm winter month, with an average temperature ranging between max 29.8°C (85.6°F) and min 20.5°C (68.9°F).

Temperature

December's transformation into January witnesses an average high-temperature of a still warm 29.8°C (85.6°F), noting a minor change from the preceding month. During the month of January, Peje's nighttime temperature lowers to an average of 20.5°C (68.9°F).

Heat index

The heat index value for January is evaluated at a fiery hot 36°C (96.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Peje, the average relative humidity in January is 77%.

Rainfall

In Peje, during January, the rain falls for 17.4 days and regularly aggregates up to 59mm (2.32") of precipitation. Throughout the year, in Peje, there are 309.5 rainfall days, and 2106mm (82.91") of precipitation is accumulated.

Daylight

The average length of the day in January is 11h and 40min.
On the first day of the month, sunrise is at 05:47 and sunset at 17:24. On the last day of January, sunrise is at 05:53 and sunset at 17:38 CST.

Sunshine

In January, the average sunshine in Peje, Costa Rica, is 9.5h.

UV index

January, February, June through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in January, converts into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.